I downloaded and PAID for HistoryKill2010 in August of 2009 but the Unlock code provided to me WOULD NOT WORK. I am aware that the info I have to type in is totally 'case-sensitive' and I purchased and Unlocked some previous versions such as HK2005 and HK2008 with success. Since (August of 2009) I have REPEATEDLY contacted Trustsoft for a solution to this problem. About a year ago the automatic response informed me that the time since I (allegedly) purchased the software was more than 90 days old so I would have to RE-PURCHASE the... read full review »